AI-TEK 70085-1010-227 Variable Reluctance Speed Sensor

The AI-TEK 70085-1010-227 is a high-quality, passive variable reluctance speed sensor (magnetic pickup) designed for precise rotational speed measurement in demanding industrial environments . Manufactured by AI-TEK (formerly known as AIRPAX), a brand renowned for rugged and reliable speed measurement solutions, this sensor is part of the extensive 70085 series, which is widely used for tachometry, speed monitoring, and control applications .

This model is engineered to convert rotational speed into an AC voltage signal without the need for an external power supply, making it a dependable choice for critical machinery protection and process control .

Key Features & Benefits

Passive Variable Reluctance Design: Operates without an external power source, generating a robust AC signal from ferromagnetic gears or targets .

Exceptional Durability: Built to withstand extreme shock, vibration, and temperature variations, ensuring long-term reliability in harsh industrial settings .

Environmental Resistance: Features a rugged, hermetically sealed construction that resists moisture, oil, and corrosive agents, making it suitable for continuous operation in challenging conditions .

High Output Signal: Provides a strong output voltage, ensuring reliable signal transmission even at low speeds.

Versatile Application: Compatible with a wide range of rotating machinery, including engines, turbines, pumps, and gearboxes .

Technical Specifications

While the specific datasheet for the 70085-1010-227 is detailed, its performance characteristics align with the high standards of the AI-TEK 70085 series. Below are the general specifications for this series, with a reference to a similar model (70085-1010-412) for output context .

Parameter Typical Value / Specification

Part Number 70085-1010-227

Operating Principle Variable Reluctance (Passive Magnetic Pickup) 

Output Type AC Voltage (Sine Wave)

Typical Output Voltage Up to 150 V (P-P) (Varies with speed and gear size) 

DC Resistance (Nominal) Typically ranges from 150 to 240 Ohms for similar models 

Operating Temperature Wide temperature range for extreme environments, e.g., -55°C to +107°C or broader 

Housing Material Stainless Steel or equivalent corrosion-resistant material

Mounting Thread Standard industrial thread size for easy installation

Polarity Pin 'B' positive for models with lead wires 

Applications Speed sensing, tachometry, position indication, zero-speed detection